Antifriction bearing and seal



March 16, 1937. H. H. EwARDs ANTIFRICTION BEARING AND SEAL Filed may 25, 1935 Z 6 42 Y I a4v \/A L i NRY H. EDWARDS,

' H/S ATTORNEY PaieniedMsr. 16,1937 Y Y i l 2,073,963

UNITED STATES PATENTVOFFIC'E 2,073,963 ANTIFRICTION BEARING AND SEAL Henry H. Edwards, Bristol, Conn., `assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application May 25. 1935, Serial No. 23,495 6 Claims.l (Cl. 30S-187.2)

'This invention relates to antifriction bearings ing to the raceway I2, the companion slot 24 and seals and comprises all oi the features .of being in the outer race ring and leading to the novelty herein disclosed. An object oi.' the inraceway I8 or to a secondary slot 25 which leads y vention is to provide improved sealing means for to the raceway I8. Each end of the outer race retaining lubricant in antifriction bearings and ringJias a peripheral groove 26 to receive a shield 5 excluding foreign matter therefrom. The inor seal, the seal at the left completing closing vention is especially applicable to antifriction the space between the race rings but the one at t bearings of the type having iilling slots through the right having an opening beyond the periphwhich the rolling elements are introduced and ery ofthe seal where the outer iilling slot 24 10 hence another object is to provide improved intersects the groove 26. means for closing such iilling slots as well as for Each of the seals illustrated in Fig. l is of a closing the-remaining space between co-operating well known type comprising metal washers 28 race rings. Another object is to provide a simple, and 30 spaced apart to receive a felt washer 32 low cost construction for closing the filling slot and an angle washer 34, an extension of the of a bearing race ring without complicating the washer 30 projecting into a peripheral notch 36 15 methodof assembling a seal or guard device with of the inner race ring. 'I'he washer 30 has an the race ring, oiset or cupped portion 38 with an outwardly To these ends and also to improve generally turned ange 4Il.J The washer 28 is inclined or upon devices of this character, the invention condished to form a capillary angle of about i'our sists in the various matters hereinafter described degrees with the upright leg of the angle washer 20 and claimed. In its broader aspects, the inven- 34 and its peripheral portion -42 forms a rounded tion is not necessarily limited to the specic conbead which is expanded or crowded into the struction selected for illustrative purposes in the groove 26 when an annular terminal ap 44 is accompanying drawing in which f bent down outside of the iiange 40. As indicated Fig. 1 is av cross sectional view oi a portion of in Figs. 1 and 2, an opening 46 is left at the illl- 25 an antifriction bearing illustrating the type to ing S1011 24 beyond the periphery 0f the Seal and which my improved sealing means is especially to close this opening without complicating the applicable. structureor method of assembling the seal is one Fig. 2 is a side elevation of a portion of such of the objects of this invention. 30 bearing, To close the opening 44, I utilize a slugor 30 Fig. 3 is a side elevation, partly in section, of a ller 52 conveniently cut from an elongated strip of material for making slugs or fillers. strip 50 of soft metal such as lead, the strip Fig. 4 is a cross sectional view of the strip. preferably being arcuate or crescent-Shaped in Fig. 5 is a cross sectional view, enlarged, of va cross section. The outer or convex surface has a portion of the bearing without the seal. curvature to fit the lling slot 24 and the inner 35 Fig. 6 is a similar view with a sealing slug in or concave surface 5I has-a curvature to t the position. periphery or rim of the annular ilap 44 before Fig. 7 is a similar view with the sealing slug in the latter as bent from the position shown in position and co-operating seal parts ready for Fig- 7. The S1118' 0r ller 52 preferably has an 40 expansion into the slug. end or head 54 bent outwardly to engage the end 4o Fig. 8 is asimilar view with the seal parts conof the race ring 20 to limit entry lengthwise into nected and the filling slot. When the ilap 44 is bent down, Fig. 9 is a similar view with the slug cut off. the washer expands into the groove 26 and into Although the linvention is applicable to antithe metal of the slug or filler as indicated in 46 friction bearings of other types, it is illustrated Fig. 8. 'I'hus the sealing washers and the ller 45 as applied to a double row ball bearing comprising are all held rmly to the bearing and present a an inner race ring I0 having angular contact finished appearance when the head 54 of the slug raceways I2 for two rows of rolling elements in is cut oir as indicated at 58 in Fig. 9. the form of balls I4, each row of rolling elements I claim: 50 having a suitable cage I6. 'I'he balls run on outer 1. In a bearing, a race ring having a lling slot, 50 angular contact raceways I 8 of an outer race ring a filler iltting in the slot, and a sealing device 20 having a plugged opening 22 for introducing having a. portion of a peripheral edge expanded lubricant. In the illustrated bearing, the balls against the filler; substantially as described. of one row are introduced through filling slots, 2. In a bearin a race ring having a lling slot, 66 one slot Rheins 1n the inner race ring and leada ller of soft material iitting in the slot. and a 55 'sealing oe embedded in the filler: substansubstantially as described. f tially al described. 5. In a bearing, a filling slot ller comprising 8. In a bearing, a race ring having a iiliing slot. an elongated slug of curved cross section adapted a ller o! soft material fitting inthe slot, a sealto enter a nlling slot lengthwise, the slug being 5. ingwashe seem-edtothe race ring, and a portion of sott metal, andthe bearing having an end 5 of the rim of the washer being embedded in the sealing washer embedded in the slug; substannller; substantially as described.` tially as described. 4. In a bearing, a race ring having a filling slot 6. In a bearing, a race ring having a transverse leading to a raceway groove, a filler comprising filling slot leading to a raceway. the` ring also 10 anelongated slug adapted to enter thelling slot having a peripheral groove opening into the slot, l0

lengthwise, andthe tiller havingaheadarranged a filler of soft material entering the slot and at an angle to the body portion to limit entry of terminating short of the raceway. and a sealing the slug into the slot and to hold the inner end device closing the end oi' the bearing and exthereof spaced from the raceway groove, and the panded into the groove with a portion embedded `ill bearing being closed by a sealing washer having a in the iiller; substantially as described. 16

(Seal) y portion of its periphery embedded in the mier; HENRY H. EDWARDS.

CERTIFICATE '0F CORRECTION Patent mamma-96s. V mammie, 1937.

HENRY H. EDWARDS.

It is hereby certified that error appears in the above numbered patent requiring correction as follows: In the heading to the printed drawing, name of inventor., for "H. l-l. lilliliRDS" read H. EDWARDS; and that the said Letters Patent should be read with this correction therein that the same mayconform to the record of the case in the Patent Office.'

Signed and sealed this 25thday of May, A. D. 1937.

Henry Van Arsdale Acting-f Commissioner of Patents.

'sealing oe embedded in the filler: substansubstantially as described. f tially al described. 5. In a bearing, a filling slot ller comprising 8. In a bearing, a race ring having a iiliing slot. an elongated slug of curved cross section adapted a ller o! soft material fitting inthe slot, a sealto enter a nlling slot lengthwise, the slug being 5. ingwashe seem-edtothe race ring, and a portion of sott metal, andthe bearing having an end 5 of the rim of the washer being embedded in the sealing washer embedded in the slug; substannller; substantially as described.` tially as described. 4. In a bearing, a race ring having a filling slot 6. In a bearing, a race ring having a transverse leading to a raceway groove, a filler comprising filling slot leading to a raceway. the` ring also 10 anelongated slug adapted to enter thelling slot having a peripheral groove opening into the slot, l0

lengthwise, andthe tiller havingaheadarranged a filler of soft material entering the slot and at an angle to the body portion to limit entry of terminating short of the raceway. and a sealing the slug into the slot and to hold the inner end device closing the end oi' the bearing and exthereof spaced from the raceway groove, and the panded into the groove with a portion embedded `ill bearing being closed by a sealing washer having a in the iiller; substantially as described. 16

(Seal) y portion of its periphery embedded in the mier; HENRY H. EDWARDS.

CERTIFICATE '0F CORRECTION Patent mamma-96s. V mammie, 1937.

HENRY H. EDWARDS.

It is hereby certified that error appears in the above numbered patent requiring correction as follows: In the heading to the printed drawing, name of inventor., for "H. l-l. lilliliRDS" read H. EDWARDS; and that the said Letters Patent should be read with this correction therein that the same mayconform to the record of the case in the Patent Office.'

Signed and sealed this 25thday of May, A. D. 1937.

Henry Van Arsdale Acting-f Commissioner of Patents. 

